Steam-propelled car



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` A'. J. PITKIN. 'STEAM PROPBLLBD GAR.

Patented May 3', 1898.

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Patented May 3,1898.

A. J. PITK'IN.

('N'o Model.)

STEAM PROPBLLED GAR. N0. 603,284.

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A. J. PYITKIN.

STEAM PROPBLLED UAR.

Patented May 3,' 1898.

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STEAM PROPBLLED CAR.

No. 603,284. Patented May 3,1898.

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5 Sheets-Sheet 5.

(No Model.)

A.J. PITKIN.' STEAM PROPELLED GAR;

No. 603,284. Patented May 3, 1898.

PATENT einen.

ALBERTJ. PITKIN, OF SCHENECTADY, NEW' YORK.

rSTE/@uw PROPELLl-:D CAR.

SPECIFICATION forming part of Letters Patent N0. 603,284, dated May 3, 1898.

Application filed December 23, 1897. Serial No. 663,138. (No model.)

To a/ZZ whom it may concern: y Be it known that I, ALBERT J. PITKIN, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented certain new anduseful Improvements in Steam-Propelled Cars, of which the following is a speciiication.

Myinvention relates especially to that class of steam-propelled cars in which thepengine is located at one end of the car-body, while the remainder of the car vis occupied by passenger-seats. Such cars are usually of cons siderable length and inl order to turn short curves have swiveled trucks. In some cases the boiler is mounted on the car-body, the

i steam-cylinders are mounted on the car-truck,

' and the steam-pipes which connect the boiler with the cylinders are made flexible or have loose joints to accommodate the necessary movement of the truck relatively to the body of the car.l Such flexible connections and loose joints are verywobjectionable and de-v tract to a large extent from thel efficiency of the mechanism.

The primary object of my invention is to so mount the boiler and the engines and so connect them that vstift' rigid pipes may be used and all danger of leakage avoided.

In carrying out my invention I employ a car-truck of suitable construction having side frames, as usual, and on these side frames I support a casting through which the boiler extends, the boiler being arranged to rest on the truck andtol extend through the oor of the car. Around the opening through which the boiler extends is secured another casting that rests on balls or rollers arranged in an annular groove or race in the first-mentioned casting. The steam-cylinders are carried on the truck-frame, and live-steam and exhaust pipes, which are stiff and have rigid joints, extend through openings in the castings and in the floor of the car and connect the cylinders with the boiler and with the exhaust.

In .theaccompanying drawings, Figure 1 shows a side elevation of one end of a passenger-car with my improvements applied.

Fig. 2 is a planview showing particularly the arrangement of the cylinders on the truckframe, the manner of connecting the castings thereto and to the car-body, and the steampipes leading from the cylinders to the boiler.

Fig. 3 is a view in longitudinal section on the line 3 3 of Fig. 2. Fig. 4 shows a transverse section kthrough the front part of the car. Fig. 5 is a detail view, on an enlarged scale, showing particularly the connections between the two castings and themanner of connecting one of the castings with the car-body.` Fig. 6 is a similar view taken at right angles to the view shown in Fig. 5. Fig. 7 is a plan view of the bottom casting, showing the manner in which it is supported on the car-truck. Fig. 8 shows a front elevation of the bottom casting. Fig. 9 is a detail view of a modified Way of connecting and arranging the two castings.

The car-truck has side frames A, having pedestals a, fitting over the axle-boxes A', and forwardly and rearwardly projecting portions a a2. It will be observed that the axleboxes are located inside the wheels, as are also the frames of the truck. In this way a more compact structure is aorded for supporting the boiler, &c. On each side of the truck a beam B is employed, which rests on the axle-boxes and supports a leaf-spring C, connected by suitable couplings with the upper beam b of the truck-frame. By this means the truck-frame A is spring-supported on the axle-boxes. The boiler D is upright and circular and rests on the beams b of the truck-frame. A circular casting E vis formed with brackets c, which are secured to the top beams b of the truck-frame. This casting is formed with a flange e', having a groove or race e2 for balls or rollers e3. It is also formed with an inwardly-projecting flange c4, having an upwardly-projecting flanged portion e8, that fits closely around the boiler D, as indicated in Fig. 6. The flanges et and es are formed with an elongated opening or recess e5 to accommodate the live-steam and exhaust pipes, and also with recesses e6 c7 to accommodate the air-brake pipes and grate-levers. The casting E is also formed withlaterallyprojecting brackets E', to which may be se- IOO depending iiange f2, formed with an annular recess f3 on its under side, that fits over the iiange e', in which the balls or rollers c3 are arranged, as clearly indicated in Fig. 5. By this arrangement the weight of the car-bod y is communicated through the castings F and E to the car-truck, and the truck, boiler, and lower casting E may turn relatively to the car-body. The opening in the floor of the car is circular, corresponding with the shape of the boiler, and suitable packing II may be employed to prevent dust, rbc., from falling down through the boiler-opening in the floor.

I prefer the form of casting shown in Figs. 5 and 6, but may employ castings formed like those illustrated in Fig. 9. The lower casting E is adapted to be secured to the truck, while the upper casting F is adapted to be secured to the car-body.

Packing II is employed to prevent dust from falling down through the opening in the iioor of the car-bod y, and packing I is also employed around the joint between the two castings to exclude dust. In this way the antifriction-bearings are kept clean. In order to prevent the castings from separating should the car give an unusual lnrch, I employ clips J, bolted to the lower casting and provided with arms or fingers j, extending into openings in the upper casting, the arrangement being such that a certain amount of play between the two castings is permitted, but their entire separation is prevented.

Steam-cylinders K are mounted on a frame L, secured to the front end of the truckframe. Live-steam pipes M extend from the cylinders and are coupled to a single livesteam pipe N, that extends vertically through the opening e5 in the lower casting up through the circular opening in the floor of the car and connects with the upper end of the boiler. The exhaust-pipe O is connected with the two cylinders and also with a vertical pipe P, cxtending through the opening e5 in the lower casting and passing vertically upward alongside of the boiler and connected with the exhaust at the upper end thereof. The pipes N and P are iiattened in those parts that extend through the opening c5 and through the iioor of the car. The steam-pipes are rigid, and there are no loose joints. lVhen the truck and boiler move relatively to the car-body, the pipes also move relatively to the body, the opening c5 being of sufficient size to permit the required movement. By mounting the engines on the truck a direct connection to the driving-wheels maybe obtained, whereas if the engines were mounted on the carbody it would be necessary to have complicated gearing, which would be Very undesirable.

I claim as my invention l. The combination of the car-body,a truck, a boiler extending through the floor of the car-body resting on and supported directly by the truck, and having its axis coincident with the axis about which the truck turns, an annular casting concentric with the boiler surrounding it and secured to the car-body, an annular casting resting on and supported by the truck and sustaining the weight of the car-body, and having its axis coincident with the axis of the boiler, ball or roller bearings interposed between the two castings, a steamengine mounted 011 the truck outside the carbody and rigid steam-pipes formed with fiattened port-ions extending through an c1011- gated opening in the lower casting and connecting the engine with the boiler and with the exhaust.

2. The combination ofthe car-body, the cartruck, a steam-boiler, an annular casting resting on the truck, another annular casting surrounding the boiler and secured to the carbody, ball or roller bearings interposed between the two castings and clips (such as J) permitting the castings to have a slight vertical movement relatively to each other but which prevent their separation.

3. The combination of a car-body, the cartruck, the boiler, a lower casting having an annular grooved iiange containing balls or rollers and laterally projecting brackets which rest on the frame of the truck, and an upper casting having a downwardly-projccting flange resting on the balls or rollers and secured to the car-body.

4. The combination of the tru cli-frame, the axle-boxes, the beams resting on the axleboxes, springs secured to the beams and connected with the truck-frames, a boiler resting on the frames, a lower annular casting also resting on the truck-frames, an upper annular casting connected with the car-body, ball or roller bearings interposed between the two castings, steam-cylinders supported on the truck-frames, a steam-pipe extending through a vertical opening in the lower casting and connected with the boiler and with the steam-cylinders, and valve-gearing supported by the truck-frame.

5. The lower casting herein described, formed with a vertical annular portion adapted to surround a cylindrical boiler, and with a laterally-proj ectin g [iange having a vertical iianged portion formed with a ball-groove, said lateral fiange being formed with elongated openings for steam-pipes, &c., substantially as described.

G. The herein described lower casting formed with a circular opening to accommodate a cylindrical boiler, an annular ballgroove, an opening to accommodate a steampipe, and laterally-projecting brackets adapted to be connected with the truck-frame.

7. The combination of the truck-frame, the car-body, the boiler extending through the car-body, the upper casting secured to the carbody, the lower casting secured to the truckframe, a steam-cylinder supported by the truck-frame, and a steam-pipe connected with the cylinder and with the boiler, said steam- IOO IIO

603,284 Y I v s pipe having a attened portion extending through an .elongated opening in the lower casting. y

- 8. The combination of the wheels,axles,and axle-boxes of the side frames of the truck, the spring-supporting beams resting on the axleboxes, spring carried by said beams and connected with the side frames of the truck, Va

cylindrical boiler resting on the side frames of the truck, a circular casting also resting on the side frames, another casting secured to the car-body and resting on the first-mentioned casting, steam-cylinders carried by the truck outside the car-body,valvegearing supported by the lower casting, and a rigid steampipe connected with the cylinders and the boiler, and passing through an opening in the lower casting.

scribed my name.

ALBERT J. PITKIN. Witnessesz.

GEO. W. FEATHERSTONHAUGH, W. T. HUNTER. 

